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Table 1

Proper elements of gigayear-stable MT asteroids.

L IP
Designation (deg) eP (deg) H
(5261) 11.53 (13) 0.0114 (02) 0.0557 22.25 16.17
(101429) 45.38 (70) 0.1692 (51) 0.0749 32.17 17.27
(121514) 78.13 (60) 0.4567 (59) 0.0378 18.05 17.18
(311999) 14.21 (13) 0.0172 (03) 0.0445 20.90 18.12
(385250) 10.65 (13) 0.0097 (02) 0.0550 22.82 18.86
2009 SE 66.35 (72) 0.3421 (80) 0.0592 20.85 20.04
2011 SC191 18.04 (17) 0.0277 (05) 0.0708 19.12 19.54
2011 SL25 14.12 (18) 0.0170 (04) 0.0854 21.71 19.49
2011 SP189 15.84 (38) 0.0214 (10) 0.0423 20.42 20.96
2011 UB256 11.84 (13) 0.0120 (02) 0.0544 22.60 19.46
2011 UN63 14.28 (13) 0.0174 (03) 0.0469 21.64 19.81
2015 TL144 82.95 (76) 0.5047 (76) 0.0565 20.51 20.99
2016 AA165 65.96 (63) 0.3397 (58) 0.0594 20.62 20.37
2016 CP31 11.27 (13) 0.0108 (02) 0.0621 21.56 19.59
2018 EC4 15.46 (15) 0.0204 (04) 0.0414 20.45 20.16
2018 FC4 12.31 (12) 0.0129 (03) 0.0439 22.09 21.30
2018 FM29 15.46 (15) 0.0204 (04) 0.0431 20.60 21.15

Notes. The second column is the libration full width accompanied by the formal uncertainty in units of 10−2 degrees. The third column is the equivalent width in semimajor axis normalised to a0,max and uncertainty in units of 10−4. The fourth and fifth columns are the proper eccentricity and inclination with formal uncertainty of 1.5 × 10−3 and 0.1 respectively. Entries shown in bold correspond to objects confirmed as stable MTs in this work. Uncertainties reported at 95% confidence. Error modelling details are provided in Appendix B.

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